مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 672
Prayer
The Excellence of the Adhan and the Response to the Mu’adhdhin - Section 2
وَعَنْ سَهْلِ بْنِ سَعْدٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «ثِنْتَانِ لَا تُرَدَّانِ أَوْ قَلَّمَا تُرَدَّانِ الدُّعَاءُ عِنْدَ النِّدَاءِ وَعِنْدَ الْبَأْسِ حِينَ يُلْحِمُ بَعْضُهُمْ بَعْضًا» وَفِي رِوَايَةٍ: «وَتَحْتَ الْمَطَرِ» . رَوَاهُ أَبُو دَاوُدَ وَالدَّارِمِيُّ إِلَّا أَنَّهُ لَمْ يَذْكُرْ «وَتَحْت الْمَطَر»
Sahl b. Sa'd reported God’s Messenger as saying, “Two things are not rejected, or are seldom rejected: a supplication when the call to prayer is made, and in stress when people are locked in battle.” A version has “and when rain is falling”. Abu Dawud and Darimi transmitted it, but Darimi did not mention “and when rain is falling”.
Mishkat al-Masabih, 672صَحِيح (الألباني)