And whosoever trusts in Allah...
And whosoever trusts in Allah, He is sufficient for him…” (65:3) He also said, “Surely those whom the angels cause to die while they are unjust to their souls, they shall say, ‘In what state were you?’ They shall answer, ‘We were weak in the earth.’ They shall say, ‘Was not Allah’s earth spacious so that you should have migrated therein?’ So, these it is whose abode is hell, and it is an evil resort except the weak from among the men and the children who have not in their power the means nor can they find a way (to escape).” (4:97-98) In his sermon of the last pilgrimage, (s.a.w.) said, “Know that the Trustworthy Soul (Jibra’il) has inspired in my mind that no soul shall die until its sustenance is completed.
Therefore, fear Allah and work hard in seeking [the sustenance]; and let not the delay in getting your share of the sustenance compel you to seek it through disobeying Allah for the Blessed and Almighty Allah has divided the sustenance among His creation by lawful means and not through unlawful means.
So, whosoever fears Allah and has patience, Allah will provide them sustenance from lawful [means]; but whosoever tears apart the curtain of propriety, makes haste and acquire their portion from unlawful [means], it will be taken off from their lawful sustenance and they will be held accountable for it on the Day of Resurrection."[^1] (See the question-answer section below.) It is not permissible to work in places of entertainment and other similar places of debauchery if that work would cause one to drift towards unlawful acts.
(See the question-answer section below.) It is permissible for Muslims to participate as partners with non-Muslims (like Christians and Jews for example) in various kinds of businesses considered lawful in Islamic laws like selling, buying, export, import, building contracts, etc. It is permissible to deposit [money] in non-Muslim (private or state-owned) banks.
If a Muslim intends to get a loan from such banks, it is necessary that he should do so with the intention that it is a transaction without return, even if he knows that he will end up paying the capital as well as the interest. And he should not do so with the intention of getting the loan with the condition of [paying] interest.
It is permissible for a Muslim to authorise another person to use his name (and his credit) to buy shares, in return for an amount (in money or commodity) on which both have reached an agreement.