Musannaf Ibn Abi Shaybah

Hazrat Jabbar al-Tai says that I was present at the funeral of Hazrat Umm Mus'ab bin Zubair, where Hazrat Ibn Abbas (may Allah be pleased with them both) was also present, riding a white donkey which was being led by someone holding its reins. And Hazrat Abdullah bin Umar (may Allah be pleased with them both) and Hazrat Abdullah bin Abbas (may Allah be pleased with them both) were also present. Then they heard the sound of wailing and crying, so I said to Ibn Abbas (may Allah be pleased with them both), "This is happening here and you are still present?" He replied: "O Jabbar, keep yourself away from them (we are not responsible for this). Surely, it is Allah who makes one laugh and Allah who makes one weep."