Abbas - Tanwîr al-Miqbâs min Tafsîr Ibn ‘Abbâs
(And the believers, men and women, are protecting friends one of another) they follow the religion of one another inwardly and outwardly; (they enjoin the right) the confession of Allah's divine unity and the following of Muhammad (pbuh) (and forbid the wrong) disbelief, idolatry and abstention from following Muhammad (pbuh) (and they establish worship) they perform the five daily prayers (and they pay the poor-due) from their wealth, (and they obey Allah and His messenger) in secret and in the open. (As for these, Allah will have mercy on them) He will not punish them. (Lo! Allah is Mighty) in his dominion and sovereignty, (Wise) in His command and ordinance.
And the believers, both men and women, are allies of one another; they enjoin decency and forbid indecency; they observe prayer and pay the alms, and they obey God and His Messenger. Those, God will have mercy on them. Truly God is Mighty, nothing can prevent Him from fulfilling His promise and His threat; Wise, He puts everything in its proper place.
(The example of the believers in the compassion and mercy they have for each other, is the example of one body: if a part of it falls ill, the rest of the body suffers with fever and sleeplessness.) Allah's statement,
(Let there arise out of you a group of people inviting to all that is good, enjoining Al-Ma`ruf and forbidding the Munkar...) 3:104. Allah said next,
وَيُقِيمُونَ الصَّلَوةَ وَيُؤْتُونَ الزَّكَوةَ
(they perform the Salah, and give the Zakah), they obey Allah and are kind to His creation,
وَيُطِيعُونَ اللَّهَ وَرَسُولَهُ
(and obey Allah and His Messenger), concerning what he commands and refraining from what he prohibits,
أُوْلَـئِكَ سَيَرْحَمُهُمُ اللَّهُ
(Allah will have mercy on them.) Therefore, Allah will give mercy to those who have these qualities,
أَنَّ اللَّهَ عَزِيزٌ
(Surely, Allah is All-Mighty), He grants glory to those who obey Him, for indeed, might and glory is from Allah Who gives it to His Messenger and the believers,
(All-Wise), in granting these qualities to the believers, while giving evil characteristics to hypocrites. Surely, Allah's wisdom is perfect in all His actions; praise and glory be to Him.
Maududi - Sayyid Abul Ala Maududi - Tafhim al-Qur'an
The contrast between the characteristics of the hypocrites (v. 67) and of the true Believers (v. 71) clearly shows that the two are entirely different from each other, in spite of their outwardly similar profession of faith in Islam and obedience to it. The difference lies in their morals, conducts, habits, attitudes and ways of thinking. On the one hand are the hypocrites whose tongues are never tired of professing faith in Islam, but who are void of sincere faith, and whose whole conduct belies their professions. They are, as it were, like bottles which have labels of "musk", but contain cow-dung which may easily be recognized from its appearance and unpleasant odor. On the other hand are the true Believers, who are like those bottles which contain musk which may be tested in any way-by its appearance, its smell and other characteristics-to be musk. Likewise, though the outward label of Islam apparently makes both of them one community of Muslims, the real characteristics of the hypocritical Muslims are so different from those of the true Muslims that they have, in fact, become two different communities. The hypocritical Muslims, men and women, form a separate community with those who have similar characteristics. They all are neglectful of Allah, take interest in evil things and deviate from all that is good and never co-operate with tare Believers and, in short, they are allies to one another and practically dissociate themselves from true Believers and form a group of their own. In contrast to them, the true Believers, men and women, have practically become one community. All of them take interest in what is good, and abhor what is evil: they remember Allah day and night and cannot think of life without the constant remembrance of Allah; they are very generous in spending in the Way of Allah, and obey Him and His Messenger without any mental reservations. These common characteristics have dissociated them from the hypocrites and united them in one Community and trade them allies to one another."
And the believers, both men and women, are protecting friends of one another.He said:[A person’s] protective friendship (muwālāt) towards the believers is [his] avoiding doing them any harm.Then he said:Know that the servant does not attain true faith (ḥaqīqat al-īmān) until he becomes as the earth for the servants of God — [it endures] the suffering that they [impose] upon it, and they [derive] benefits from it.He also said:The fundamentals (uṣūl), in our view, comprise seven things: adherence to the Book of God, following the Messenger of God, abiding by what is lawful, refraining from harm [to others], the avoidance of sins, repentance and the observance of the rights [of others].His words: