It is narrated from Sayyiduna Imran bin Husayn (may Allah be pleased with him) that a man came to the Prophet (peace and blessings be upon him) and said: "As-salamu alaykum (Peace be upon you)." He (peace and blessings be upon him) returned his greeting, and then he sat down. The Prophet (peace and blessings be upon him) said: "Ten (good deeds)." Then another man came and said: "As-salamu alaykum wa rahmatullah (Peace be upon you and the mercy of Allah)." He (peace and blessings be upon him) returned his greeting, and then he sat down. The Prophet (peace and blessings be upon him) said: "Twenty (good deeds)." Then another man came and said: "As-salamu alaykum wa rahmatullahi wa barakatuh (Peace be upon you, and the mercy of Allah and His blessings)." He (peace and blessings be upon him) returned his greeting, and then he sat down. He (peace and blessings be upon him) said: "Thirty good deeds."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Awf except Ja'far; Muhammad bin Kathir is alone in narrating it, and this hadith is narrated from Sayyiduna Imran bin Husayn (may Allah be pleased with him) only with this chain."
Hadith Referenceالمعجم الأوسط / باب الميم / 5948
Hadith Takhrij«أخرجه النسائي فى «السنن الكبرى» برقم: 10097، وأبو داود فى «سننه» برقم: 5195، والترمذي فى «جامعه» برقم: 2689، والدارمي فى «مسنده» برقم: 2682، وأحمد فى «مسنده» برقم: 20267، 20268، والبزار فى «مسنده» برقم: 3588، والطبراني فى «الكبير» برقم: 280»