It is narrated from Sayyiduna Rifa'ah bin Malik (may Allah be pleased with him): On the day of Badr we set out (towards the battlefield), and we could not find the Messenger of Allah (peace and blessings be upon him) (among us). So all the companions began calling out to one another: Is the Messenger of Allah (peace and blessings be upon him) with you? All the people stopped there until the Messenger of Allah (peace and blessings be upon him) arrived, and with him was Sayyiduna Ali bin Abi Talib (may Allah be pleased with him). The people said: O Messenger of Allah! We had lost you. He (peace and blessings be upon him) said: "Abu al-Hasan (Ali) had a cramp (pain) in his stomach, so I stayed behind because of him."