He mortgaged his house with the bank, in order to take out a loan

No File Exists
Check below answers in case you are looking for other related questions:
The ruling on going for Hajj and ‘Umrah and paying by means of credit cards
Using something which was bought with ribaa

No File Exists
Related Answers:
The company gave them a loan on condition that it would deduct a set amount from their salaries; what is the ruling?
He took out a riba-based loan to buy a house and now the bank is asking for interest
Harmful effects of Riba
The ruling on going for Hajj and ‘Umrah and paying by means of credit cards
Using something which was bought with ribaa

Recommended answers for you:
Names whose use is forbidden
Etiquette of visiting graves
Fasting in the month of Rajab
If image-making is haraam, how come it is permissible to watch TV and videos?
Divorce (talaaq) in the state of anger; and is it necessary to have witnesses to divorce?