BNM Shariah Standards
Bai` al-Sarf: Appendices
The following verse of the Quran implies the general permissibility of sales contract including bai` al-sarf:
وَأَحَلَّ اللّهُ الْبَيْعَ وَحَرَّمَ الرِّبَا
وَأَحَلَّ اللّهُ الْبَيْعَ وَحَرَّمَ الرِّبَا
“...whereas Allah SWT has permitted trading and forbidden usury...”