Abu al-Huwayrith narrates: Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) passed away, and we came to his door among Banu Salamah. When his bier came out of his room, Hasan bin Hasan was between the two poles of the bier. Al-Hajjaj bin Yusuf ordered him to move out from between the two poles, but he refused until the people became entangled with him. Then the sons of Jabir asked him to move away, so he moved away. Al-Hajjaj came and stood between the two poles until the bier was set down, and he led the funeral prayer. Then he came to the grave and saw that Hasan bin Hasan had already gone down into the grave. Al-Hajjaj ordered him to come out, but he refused. The sons of Jabir said: For the sake of Allah! So he came out, and al-Hajjaj jumped into the grave until he had finished with him.
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1725