Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: "And let not swear" [Surah al-Nur: 22], that is, let not take an oath, "those among you who are endowed with grace and means", that is, let not Sayyiduna Abu Bakr (may Allah be pleased with him) swear that he will not spend on Mistah bin Uthathah, "that they will not give to relatives, the poor and those who emigrated in the cause of Allah; let them pardon and overlook" [Surah al-Nur: 22]: I (Allah) have placed grace in you, O Abu Bakr, and have given you means, knowledge of Allah and recognition of the ties of kinship; so, O Abu Bakr, be kind to Mistah, for he is a relative, he has the honour of emigration and poverty, and he has taken part in battles which I accepted, among them Badr. "Do you not love that Allah should forgive you?" [Surah al-Nur: 22], that is, so forgive Mistah. "And Allah is Forgiving, Merciful" [Surah al-Baqarah: 218], that is, I am Forgiving towards the one who errs and Merciful to My friends.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19526