Write a letter to your friend condoling him at the death of his father.

Dear [Friend's Name],

I hope this letter finds you in strength during this challenging time. I was deeply saddened to hear about the passing of your father. Please accept my heartfelt condolences.

Inna lillahi wa inna ilayhi raji'un. May Allah grant him peace and a place in Jannah. Losing a parent is an immense loss, and my thoughts and prayers are with you and your family.

Your father was a remarkable person, and his memory will be cherished by all who knew him. His kindness and wisdom touched the lives of many. Remember the good times and the valuable lessons he shared.

During this period of grief, please know that you have my full support. If there's anything I can do to ease the burden or provide comfort, please don't hesitate to let me know.

May Allah grant you and your family patience and strength to cope with this loss. In this difficult time, lean on the love and support of friends and family. You are not alone.

Once again, I extend my deepest sympathies. May your father's soul rest in eternal peace.

With sincere condolences,
[Your Name]