رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1325
The Book of Jihad
Obligation of Jihad
وَعَنْ سَهْلِ بْنِ سَعْدَ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ثِنْتَانِ لاَ تُرَدَّانِ، أَوْ قَلَّمَا تُرَدَّانِ: الدُّعَاءُ عِنْدَ النِّدَاءِ وَعِنْدَ الْبَأْسِ حِينَ يُلْحِمُ بَعْضُهُمْ بَعْضًا ((رَوَاهُ أَبُو دَاوُدَ بِإِسْنَادٍ صَحِيح)).
Sahl bin Sa'd (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said, "Supplications at two times are never turned down (or said, "Are seldom turned down"), a supplication after the Adhan has been proclaimed, and a supplication during the battle combating the enemy." [Abu Dawud].
Riyad as-Salihin, 1325