The Sufficient (Vol 3) · Hadith 1799 (#Ḥadīth #3)
Chapter 87 | Performing Salah (Prayer) in Battlefield
3ـ عَنْهُ عَنْ أَبِيهِ عَنْ عَبْدِ الله بْنِ الْمُغِيرَةِ قَالَ سَمِعْتُ بَعْضَ أَصْحَابِنَا يَذْكُرُ أَنَّ أَقَلَّ مَا يُجْزِئُ فِي حَدِّ الْمُسَايَفَةِ مِنَ التَّكْبِيرِ تَكْبِيرَتَانِ لِكُلِّ صَلاَةٍ إِلاَّ الْمَغْرِبَ فَإِنَّ لَهَا ثَلاَثاً.
3. It is a narration from him (narrator of previous Hadith) by ‘Abd Allah ibn al-Mughirah who has said the following: “I have heard from certain persons of our people saying that the minimum recitation when swords are at work is two Takbir (Allah is great beyond description) for every Salah (prayer) except that there are three Takbir (Allah is great beyond description) for al-Maghrib.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).