Is there a Quranic verse which states that we should not assist one another in sin?
Yes. Allah Ta’ala mentions,
“Assist each other in good and Taqwa and do not assists each other in sin and transgression…”
(Surah Al Maidah, verse: 2)
The Mufassirun have explained ‘sin’ as Kufr [disbelief in Allah] as well as all forbidden acts and ‘transgression’ as transgression of Allah’s bounds or oppressing people.
(Refer: Tafsir ibn Abi Hatim, Tafsir Tabari, Tafsir Baghawi and Tafsir Ibn Kathir, Surah Al Maidah, verse: 2)
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar
Checked by: Moulana Haroon Abasoomar