Mishkat al-Masabih #823
Prayer
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
عَنْ أَبِي مَسْعُودِ الْأَنْصَارِيِّ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «لَا تُجْزِئُ صَلَاةُ الرَّجُلِ حَتَّى يُقِيمَ ظَهْرَهُ فِي الرُّكُوعِ وَالسُّجُودِ» . رَوَاهُ أَبُو دَاوُدَ وَالتِّرْمِذِيُّ وَالنَّسَائِيُّ وَابْنُ مَاجَهْ وَالدَّارِمِيُّ وَقَالَ التِّرْمِذِيُّ: هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ
Abu Mas'ud al-Ansari reported God’s Messenger as saying, “A man’s prayer does not avail him unless he keeps his back steady when bowing and prostrating himself.”
Abu Dawud, Tirmidhi, Nasa’i, Ibn Majah and Darimi transmitted it, and Tirmidhi said this is a hasan sahih tradition.
Topics
About Mishkat al-Masabih
This hadith is #823 from Mishkat al-Masabih, in the Book of Prayer.