Sahih al-Bukhari 4205
Narrated Abu Musa Al-Ash`ari:
When Allah's Messenger (ﷺ) fought the battle of Khaibar, or when Allah's Messenger (ﷺ) 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 (ﷺ) 
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 (ﷺ)!" He said, "Shall I tell you a sentence which 
is one of the treasures of Paradise" I said, "Yes, O Allah's Messenger (ﷺ)! 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 ‏"‏‏.‏