1. We were told by Muhammed bin Ahmad al-Shaybani, may Allah be pleased with him, that he said: We were told by Muhammed bin Abi Abdillah al-Kufi, that he said: We were told by Musa bin Imran al-Nakha’I, from his paternal uncle, Hussain bin Yazid, from Isma’eel ibn Muslim, from Ja’far bin Muhammed, from his father, from his grandfather, from Ali, peace be upon them, that he said: Jibra’eel descended unto the Prophet, Allah’s blessings be upon him and his Family, and said: O Muhammed, order you companions to ‘ajj and thajj. ‘Ajj is to raise the voices during declaring gratification (to Allah), and thajj is to slaughter the cattle.