(16) باب الأَمْرِ بِإِجَابَةِ الدَّاعِي إِلَى دَعْوَةٍ
This hadith has been narrated on the authority of Abu Huraira (Allah be pleased with him) through another chain of transmitters.
Reference: Sahih Muslim 1432 c
In-book reference: Book 16, Hadith 126
USC-MSA web (English) reference(deprecated numbering scheme): Book 8, Hadith 3351