Nawfil Ibn Maymoon [rahimahullaah] said: Saeed Ibn Sulaymaan [rahimahullaah] came to Abdullaah Ibn Muhammad Ibn Imraan [rahimahullaah] as a witness [for someone], but Ibn Imraan rejected his witness. And when Saeed was appointed to give verdicts, Abdullaah Ibn Muhammad Ibn Imraan came to him as a witness [for someone], so he took his witness and examined it for an hour; then he raised his head and said, ‘’The believer does not [seek] to satisfy his rage. O Ibn Deenaar! Approve his witness”. So, he approved it.
[Taareekh Baghdaad: 9/66]