The occulted imam in Quran?
الَّذِينَ يُؤْمِنُونَ بالغیب وَ يُقِيمُونَ الصَّلاة وَ مِمَّا رَزَقْناهُمْ يُنْفِقُون. [بقره/۳]
Translation:
Righteous are those who believe in the Unseen [the occulted imam], maintain the prayer, and spend out of what we have provided for them [all the gifts by God] (Al-Baqarah, verse 3)