Sahih Muslim
Hadith #588
This hadith has been narrated on the authority of `Ali b. `Abd al-Rahman with the same chain of transmitters and there is no mention of the word of al-Ribat in the hadith transmitted by Shu`ba and in the hadith narrated by Malik ""Ribat"" has been mentioned twice. This is the ""Ribat"" for you, this is the ""Ribat"" for you