It is narrated from Sayyiduna Shaddad bin Aws (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "He is not a liar who says something good, or passes on good word (to others)."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Imam al-Zuhri (may Allah have mercy on him), from Mahmud, from Sayyiduna Shaddad bin Aws (may Allah be pleased with him), except Yahya bin Jurjah (may Allah have mercy on him), and in it Qaza'ah bin Suwayd (may Allah have mercy on him) is alone; whereas other people narrated it from Imam al-Zuhri (may Allah have mercy on him), from Humayd bin Abd al-Rahman (may Allah have mercy on him), from his mother, Sayyidah Umm Kulthum (may Allah be pleased with her)."
Hadith Referenceالمعجم الأوسط / باب الميم / 6338
Hadith Takhrij«أخرجه البزار فى «مسنده» برقم: 3479، والطبراني فى «الكبير» برقم: 7169»