Bribery is forbidden and is counted among the major sins, whether one pays a bribe to obtain what he is not entitled to or takes one to grant it. ʿAbdullah ibn ʿAmr reported: "The Messenger of Allah (ﷺ) cursed the one who gives a bribe and the one who takes a bribe." This covers payments to secure an unfair advantage, to have a wrongful ruling passed, or to jump ahead of others' rightful claims, and it corrupts trust in commerce and public office alike. A payment made purely to recover a right that is being unjustly withheld, with no other lawful recourse, is discussed differently by some scholars, with the sin resting on the one who unlawfully demanded it.
Evidence — the daleel
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Informational, not a personal fatwa. Consult a qualified scholar for rulings on your situation.