Weak
graded by Al-Albani
Mishkat al-Masabih 1003
Narrator:Abdullāh ibn ‘Umar
وَعَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «الِاخْتِصَارُ فِي الصَّلَاةِ رَاحَةُ أَهْلِ النَّارِ» . رَوَاهُ فِي شرح السّنة
Ibn ‘Umar reported God’s Messenger as saying, “Resting the hands on the waist in prayer is the comfort of those who go to hell.” [Baghawi] transmitted it in Sharh as-sunna.
Cited in Mishkat al-Masabih (No. 1003).