It is reported from Qatadah, or perhaps someone else: Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) saw two men praying. One of them had let his lower garment hang down, and the other was not completing his ruku' (bowing) and sujud (prostrations). Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) laughed. The people asked, "O Abu Abd al-Rahman, what made you laugh?" He said: "I am amazed at these two men. As for the one who has let his lower garment hang down, Allah Almighty will not look at him; and as for the other, Allah Almighty will not accept his prayer."
Imam al-Tabarani recorded this narration. The chain of this narration is broken (munqati') between Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) and Qatadah, and the narrators of this narration are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2733
Hadith Gradingمحدثین:إسنادہ منقطع
Hadith Takhrij«أخرجه المعجم الكبير للطبراني برقم: 9366»