If a person follows the Imam and the others follow that person (then it is all right)
باب الرَّجُلُ يَأْتَمُّ بِالإِمَامِ وَيَأْتَمُّ النَّاسُ بِالْمَأْمُومِ
1930
Sahih Bukhari
Sahih
وَقَالَ لِي مُحَمَّدُ بْنُ الْمُثَنَّى حَدَّثَنَا يَحْيَى، عَنْ هِشَامٍ، قَالَ أَخْبَرَنِي أَبِي كَانَتْ، عَائِشَةُ ـ رضى الله عنها ـ تَصُومُ أَيَّامَ مِنًى، وَكَانَ أَبُوهَا يَصُومُهَا.
Narrated Yahya:
Hisham said, "My father said that 'Aishah (ra) used to observe Saum (fast) on the days of Mina." His (i.e., Hisham's) father also used to observe Saum on those days.
Reference: Sahih al-Bukhari 1996 In-book : Book 30, Hadith 102 USC-MSA web (English) : Vol. 3, Book 31, Hadith 216 (deprecated)
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