Can I offer blood donation to get some money?
In the Name of Allah, the All-Merciful, the Mercy-Giving
All praise is due to Allah. Peace and blessings be upon His Messenger Muhammad.
There is an agreement among Muslim jurists to the impermissibility of selling blood. The Quran explicitly declares “Forbidden to you is [the consumption of] carrion, and blood…” [5:3]
The Messenger of Allah (peace and blessings be upon him) sets a rule that dictates “When Allah forbids people to eat something, He forbids its price for them as well.” [Abu Dawoud]
There is another prophetic injunction that forbids the price of blood. [Al-Bukhari]
Almighty Allah knows best.