Abu Sufyan (May Allah be pleased with him) reported, in course of his detailed narration about Heraclius when the latter questioned him about the teachings of the Prophet (PBUH) He said that: He (PBUH) 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 observe modesty and to strengthen the ties of kinship. [Al-Bukhari and Muslim, Hadith 56].