Narrated Abu Musa Al-Ash`ari: When Allah's Apostle fought the battle of Khaibar, or when Allah's Apostle went towards it, (whenever) the people, (passed over a high place overlooking a valley, they raised their voices saying, Allahu-Akbar! Allahu-Akbar! None has the right to be worshipped except Allah. On that Allah's Apostle said (to them), Lower your voices, for you are not calling a deaf or an absent one, but you are calling a Hearer Who is near and is with you. I was behind the riding animal of Allah's Apostle and he heard me saying. There Is neither might, nor power but with Allah, On that he said to me, O `Abdullah bin Qais! I said, Labbaik. O Allah's Apostle! He said, Shall I tell you a sentence which is one of the treasures of Paradise I said, Yes, O Allah's Apostle! Let my father and mother be sacrificed for your sake. He said, It is: There is neither might nor power but with Allah.