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.
حَدَّثَنِي إِسْحَاقُ بْنُ مُوسَى الأَنْصَارِيُّ، حَدَّثَنَا مَعْنٌ، حَدَّثَنَا مَالِكٌ، ح وَحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، جَمِيعًا عَنِ الْعَلاَءِ بْنِ عَبْدِ الرَّحْمَنِ، بِهَذَا الإِسْنَادِ وَلَيْسَ فِي حَدِيثِ شُعْبَةَ ذِكْرُ الرِّبَاطِ وَفِي حَدِيثِ مَالِكٍ ثِنْتَيْنِ " فَذَلِكُمُ الرِّبَاطُ فَذَلِكُمُ الرِّبَاطُ " .
Muslim
The Book of Purification • Hadith 55