Sahih al-Bukhari, Hadith 4205 ⓘ

Narrated Abu Musa Al-Ash`ari: When Allah's Messenger fought the battle of Khaibar, or when Allah's Messenger 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 Messenger 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 Messenger!" He said, "Shall I tell you a sentence which is one of the treasures of Paradise" I said, "Yes, O Allah's Messenger! Let my father and mother be sacrificed for your sake." He said, "It is: There is neither might nor power but with Allah."

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا عَبْدُ الْوَاحِدِ، عَنْ عَاصِمٍ، عَنْ أَبِي عُثْمَانَ، عَنْ أَبِي مُوسَى الأَشْعَرِيِّ ـ رضى الله عنه ـ قَالَ لَمَّا غَزَا رَسُولُ اللَّهِ صلى الله عليه وسلم خَيْبَرَ ـ أَوْ قَالَ لَمَّا تَوَجَّهَ رَسُولُ اللَّهِ صلى الله عليه وسلم ـ أَشْرَفَ النَّاسُ عَلَى وَادٍ، فَرَفَعُوا أَصْوَاتَهُمْ بِالتَّكْبِيرِ اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ، لاَ إِلَهَ إِلاَّ اللَّهُ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ ارْبَعُوا عَلَى أَنْفُسِكُمْ، إِنَّكُمْ لاَ تَدْعُونَ أَصَمَّ وَلاَ غَائِبًا، إِنَّكُمْ تَدْعُونَ سَمِيعًا قَرِيبًا وَهْوَ مَعَكُمْ ‏"‏‏.‏ وَأَنَا خَلْفَ دَابَّةِ رَسُولِ اللَّهِ صلى الله عليه وسلم فَسَمِعَنِي وَأَنَا أَقُولُ لاَ حَوْلَ وَلاَ قُوَّةَ إِلاَّ بِاللَّهِ، فَقَالَ لِي ‏"‏ يَا عَبْدَ اللَّهِ بْنَ قَيْسٍ ‏"‏‏.‏ قُلْتُ لَبَّيْكَ رَسُولَ اللَّهِ‏.‏ قَالَ ‏"‏ أَلاَ أَدُلُّكَ عَلَى كَلِمَةٍ مِنْ كَنْزٍ مِنْ كُنُوزِ الْجَنَّةِ ‏"‏‏.‏ قُلْتُ بَلَى يَا رَسُولَ اللَّهِ فِدَاكَ أَبِي وَأُمِّي‏.‏ قَالَ ‏"‏ لاَ حَوْلَ وَلاَ قُوَّةَ إِلاَّ بِاللَّهِ ‏"‏‏.‏