hadith
1361
۞
Imam al-Baqir (AS) said, ‘The Friday prayer is an obligation, and congregating for it in the presence of an Imam [Imam as in one of the twelve divinely appointed Imams (AS) (ed.)] is an obligation, so if someone misses three Friday prayers without an excuse, it is as if he has abandoned the performance of three obligations, and none but a hypocrite abandons three obligations without an excuse.
الإمامُ الباقرُ (عَلَيهِ الّسَلامُ): صلاةُ الجُمُعَةِ فَريضَةٌ، والاجتِماعُ إلَيها فَريضَةٌ مع الإمامِ، فإن تَرَكَ رَجُلٌ مِن غَيرِ عِلَّةٍ ثلاثَ جُمَعٍ فَقَد تَرَكَ ثلاثَ فَرائضَ، ولا يَدَعُ ثلاثَ فَرائضَ مِن غَيرِ عِلَّةٍ إلّا مُنافِقٌ .