Sayyiduna Sahl bin Hunayf (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "Whoever says 'As-salamu alaykum', ten good deeds are recorded for him; whoever says 'As-salamu alaykum wa rahmatullah', twenty good deeds are recorded for him; and whoever says 'As-salamu alaykum wa rahmatullahi wa barakatuh', thirty good deeds are recorded for him."
Tabarani recorded it. Its chain contains a narrator, Musa bin Ubaydah al-Rabadhi, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 12737
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (5563) ، أخرجه إتحاف الخيرة المهرة بزوائد المسانيد العشرة برقم: 5272/1»