It is quoted from Imam Musa ibn Ja'far(as)who said: Tuba is for those of Shias who adhere toour path during the absence of Al-Mahdi(as), thosewho are loyal to us and avoid our enemies. We aresatisfied with them and they are satisfied with us.They accepted us as their imams and we acceptedthem as our Shias. So Tuba is for them and I swearbefore God that during the judgment day they willhave the same level as us.