Al-Qasim bin Abd al-Rahman narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that when he came to the land of Abyssinia, he was seized over something and detained, so he gave two dinars, after which he was let go.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب آداب القاضي / 20482