41. Covenants (Promises) must be fulfilled.
Surah No. 5, Al Maaeda, part of Ayat No. 1
يَا أَيُّهَا الَّذِينَ آمَنُواْ أَوْفُواْ بِالْعُقُودِ
Translation :
O you who believe! Fulfill (your) obligations.
Surah No. 17, Al Isra (Bani Israil), Part of Ayat No. 34
o وَأَوْفُواْ بِالْعَهْدِ إِنَّ الْعَهْدَ كَانَ مَسْؤُولاً
Translation :
And fulfil (every) covenant (Promise). Verily! the covenant will be enquired (On the day of Judgment)