Sayyiduna Abdullah bin Mughaffal (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "The greatest thief is the one who steals his prayer." It was submitted, "O Messenger of Allah, how does he steal his prayer?" He said: "He does not complete its ruku' (bowing) and its sujud (prostrations). And the greatest miser is the one who is miserly with the greeting of salam."
Imam al-Tabarani recorded this narration in all three of his books (the three Mu'jams), and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2722
Hadith Gradingمحدثین:إسنادہ صحیح، اس کے تمام راوی ثقہ ہیں۔
Hadith Takhrij«أخرجه المعجم الأوسط للطبراني برقم: 3416، وأخرجه المعجم الصغير للطبراني برقم: 309»