Musannaf Ibn Abi Shaybah

Hazrat Urwah states that Abdullah bin Mas'ud (may Allah be pleased with him), Uthman, Miqdad bin Aswad, Abdur Rahman bin Awf, and Muti' bin Aswad (may Allah be pleased with them) had appointed Hazrat Zubair bin Awwam (may Allah be pleased with him) as the executor of their wills, and Abdur Rahman bin Zubair (may Allah be pleased with him) appointed me as the executor of his will.

Nafi' reports that Ibn Umar (may Allah be pleased with them both) had taken responsibility for the execution of a man's will.

Ibn Aun narrates that one of my paternal cousins made me responsible for a will, and I expressed my dislike for it. After that, I asked Hazrat Amr about this matter, and he instructed me to accept this responsibility. He states that Muhammad bin Sirin also used to take on the responsibility of a will.

Qais narrates that Hazrat Abu Ubaid crossed the Euphrates, and he had appointed Hazrat Umar bin Khattab (may Allah be pleased with him) as his executor.

Abu Al-Haytham says that Ibrahim sent a message and appointed me as his executor (wasi).