Indeed, Allah commands you to render back the trusts to those, to whom they are due...
(Surah An-Nisa, Verse No.58)
If you trust one another, then let him who is trusted fulfill his trust, and let him be conscious of God, his sustainer
(Surah Baqarah, Verse No. 28)
And perform the trust to those who entrusted it to you, and do not betray those who betrayed you
(Saheehat-Tirmidhi, Hadith No.1264)
...Allah has permitted trade and has forbidden interest.
(Surah al Baqarah: Verse No.275)
(Yusuf) Said: You will cultivate consecutively for seven years. Leave in the ears all that you have harvested except the little out of which you may eat. Then there will follow seven years of great hardship in which you will eat up all you have stored earlier, except the little that you may set aside (stored)
(Surah Yusuf: Verse No.47-48)
Interest must not be charged or paid on any financial transaction, as interest is deemed unlawful by Shari’ah. Allah has permitted trade and has forbidden interest.
(Surah al Baqarah, Verse No.275)
Uncertainty in contractual terms and conditions is forbidden. However, risk taking is allowed when all the terms and conditions are clear and known to all parties. Abu Hurairah (RA) reported that Prophet Muhammad (saw) forbade a transaction determined by throwing stones, and the type which involves some uncertainty.
(Sahih Muslim:Book 10, Number 3614)
‘Intoxicants and gambling and divining arrows are an act of abomination of Satan’s handiwork’; so avoid them, so that you attain true success
(Surah Al-Ma'idah - 5:90)
The best earning is what a man earns with his own hands and from a permissible trade
(Al-Mustadrak, Hadith no. 2160)
....Truly many are the partners (in business) who wrong each other’s: Not so do those who believe, and work deeds of righteousness.
(Surah As-Saad: Verse No. 24)
If you had wished, surely you could have exacted some recompense for it.
(Surah al-Kahf, Verse 77)
Abdullah Ibn Umar narrated, the Prophet (peace be upon him) said: Pay the hired worker his wages before his sweat dries off.
(SunanIbnMajah, Hadith No. 2443)
The Prophet (peace be upon him) is reported to have said: … He who hires a person should inform him of his fee.
(Al-Bayhaqi, Al-Sunan al-Kubra, Hadith No. 11761)