وَثَمَنِ الصَّرْفِ وَالْمُسْلَمِ فِيهِ
Translation: And also for the consideration of sarf and for the goods owed under salam.
Sarf is an exchange governed by the special rules of gold, silver and corresponding monetary consideration. Both countervalues must be possessed within the session. Collateral may secure the unpaid consideration but giving collateral is not identical to making the required exchange.
If a party receives gold but still owes silver, he may pledge security. Unless the missing consideration is received or validly constructively satisfied before the session ends, the pledge by itself does not validate sarf.
Opening interactive controls...
Collateral for the countervalue in sarf
Kitab al-Rahn: Salam, Sarf, Third-party Custody and Fungible Collateral
وَثَمَنِ الصَّرْفِ وَالْمُسْلَمِ فِيهِ
Translation: And also for the consideration of sarf and for the goods owed under salam.
Sarf is an exchange governed by the special rules of gold, silver and corresponding monetary consideration. Both countervalues must be possessed within the session. Collateral may secure the unpaid consideration but giving collateral is not identical to making the required exchange.
If a party receives gold but still owes silver, he may pledge security. Unless the missing consideration is received or validly constructively satisfied before the session ends, the pledge by itself does not validate sarf.