It is reported that Maymūn b. Mihrān – Allāh have mercy on him – said:

There are three things that must be given to both the righteous and the sinful: the ties of the womb (relatives) must be kept connected, whether they are righteous or sinful; trust must be fulfilled, for the righteous and the sinful; and promises must be kept, to the righteous as well as the sinful.

Ibn Abī Shaybah, Al-Muṣannaf 12:298.