1)     

وَالَّذِينَ هُمْ بِشَهَادَاتِهِمْ قَائِمُونَ [٧٠:٣٣] وَالَّذِينَ هُمْ عَلَىٰ صَلَاتِهِمْ يُحَافِظُونَ [٧٠:٣٤] أُولَٰئِكَ فِي جَنَّاتٍ مُكْرَمُونَ [٧٠:٣٥]

 “And those who stand firm in their testimonies (minimum 3 shahadah). And those who guard (the sacredness) of their worship. And such will be the honored ones in the Gardens (of Bliss)” [70:33-35]

The above verse of the Holy Quran clearly states that we should stand firm on a minimum of 3 testimonies (shahadah) so as to enter heaven.

2)     

 [٢:١٤٠] وَمَنْ أَظْلَمُ مِمَّنْ كَتَمَ شَهَادَةً عِنْدَهُ مِنَ اللَّه

“And who is more unjust than those who conceal the testimony they have from Allah?” [2:140]

3)     

وَلَا تَجْهَرْ بِصَلَاتِكَ وَلَا تُخَافِتْ بِهَا وَابْتَغِ بَيْنَ ذَٰلِكَ سَبِيلًا [١٧:١١٠]

"Neither speak thy Prayer aloud, nor speak it in a low tone, but seek a middle course between." [17:110]

Jabin ibn Abdullah Ansari asks Imam Muhammad Baqir (as) regarding this verse of the Holy Quran. Imam Baqir (as) replied saying:

ولا تجهر بولایة علی

 “Do not say the Wilayat of Imam Ali (as) aloud. But don’t hide it from Ali (as). Recite it in a middle tone until I give you the permission to recite/declare it openly. This permission was granted on the day of Ghadeer-e-Khum.”

 

4)

فِطْرَتَ اللَّهِ الَّتِي فَطَرَ النَّاسَ عَلَيْهَا  [٣٠:٣٠]

"The nature made by Allah in which he has made men." [30:30]

Imam Muhammad Baqir (as) says regarding the above verse of the Holy Quran:

هی لا اله الاالله محمد رسول الله صلی الله علیه و الهِ و سلم علی امیر المومنین ولی الله التی ههنا التوحید

“That (Fitrat) is ‘There is no God but Allah, Muhammad is the Prophet of Allah, Ali Amir-al-Momineen is the Wali of Allah’.

[Ref: Tafseer-e-Burhaan Vol:3 Pg:262 & Tafseer-e-Furaat]