In which Surah of the Holy Quran the letter ‘Fa’ did not appear?

In which Surah of the Holy Quran the letter ‘Fa’ did not appear?

قرآن مجید کی کس سورہ میں حرف ’ف‘ نہیں آیا؟
Explanation

Surah Fatiha Other names: The Key, The Opener
No. of verses: 7
No. of words: 25
No. of letters: 139