1 verse has
“guarantor”
in Edition Clear Qur'an by Talal Itani / An-Nahl (The Bee)
16:91Fulfill God’s covenant when you make a covenant, and do not break your oaths after ratifying them. You have made God your guarantor, and God knows what you do.
Support Ayat Al Quran
Those who spend their wealth by night and day, privately and publicly, will receive their reward from their Lord. They have nothing to fear, nor shall they grieve.
The Holy Quran · Al-Baqara (The Cow) · 2:274