https://www.eislamicbook.com/chit-fund-ya-chitti-kay-islami-ahkam-by-maulana-uzair-ahmad-miftahi-%da%86%d9%b9-%d9%81%d9%86%da%88-%db%8c%d8%a7-%da%86%d9%b9%da%be%db%8c-%da%a9%db%92-%d8%a7%d8%b3%d9%84%d8%a7%d9%85%db%8c-%d8%a7%d8%ad/