27/5. Chapter:
The Statement of Allah تعالى: "...And whosoever of you is ill or has an ailment in his scalp, (necessitating shaving), he must pay a Fidya (ransom), of either observing Saum (fasts) (three days), or giving Sadaqa (charity - feeding six poor persons), or offer sacrifice (one sheep)..." (V.2:196)
وَهُوَ مُخَيَّرٌ، فَأَمَّا الصَّوْمُ فَثَلاَثَةُ أَيَّامٍHe has the option. As for fasting, it should be for three days.
Sahih Bukhari : 1814
Sahih BukhariHadith Number 1814
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ حُمَيْدِ بْنِ قَيْسٍ، عَنْ مُجَاهِدٍ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى، عَنْ كَعْبِ بْنِ عُجْرَةَ ـ رضى الله عنه ـ عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّهُ قَالَ " لَعَلَّكَ آذَاكَ هَوَامُّكَ ". قَالَ نَعَمْ يَا رَسُولَ اللَّهِ. فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " احْلِقْ رَأْسَكَ وَصُمْ ثَلاَثَةَ أَيَّامٍ، أَوْ أَطْعِمْ سِتَّةَ مَسَاكِينَ، أَوِ انْسُكْ بِشَاةٍ ".
Narrated `Abdur-Rahman bin Abu Layla: Ka`b bin 'Ujra said that Allah's Messenger (ﷺ) said to him (Ka`b), "Perhaps your lice have troubled you?" Ka`b replied, "Yes! O Allah's Messenger (ﷺ)." Allah's Messenger (ﷺ) said, "Have your head shaved and then either fast three days or feed six poor persons or slaughter one sheep as a sacrifice."
Reference : Sahih al-Bukhari 1814In-book reference : Book 27, Hadith 9USC-MSA web (English) reference : Vol. 3, Book 28, Hadith 41
