Abu al-Juwayriyah reports that he heard Sayyiduna Ibn Abbas (may Allah be pleased with them both) (asked) about a man who owed a hundred camels if he spoke to his brother: (he said) that he should sacrifice thirty camels and speak to his brother.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأيمان / 20055