- Abu Sufyan may Allah be pleased with him reported, in course of his detailed narration about Heraclius when the letter questioned him about the teachings of the Prophet peace and blessings of Allah be upon him .He said that he peace and blessings of Allah be upon him told (us): “Worship ALLAH alone and do not associate a thing with Him ; and give up all that your ancestors said.” He also commands us to perform Salat ( Prayers), to speak the truth, to strengthen the ties of kinship.
[Al-bukhari and Muslim]