Shaikh Salih ala Shaikh said hafidhuhallah:
“The Scholars differed: is Jummah the first of the week or the end of it? The Majority of the People of Knowledge are of the opinion that it is the first of the week and that Saturday and Sunday are after it. They use as evidence the following:
وَكَذَلِكَ هُمْ تَبَعٌ لَنَا يَوْمَ الْقِيَامَةِ
In this order would they (Jews and Christians) come after us on the Day of Resurrection.
His statement “In this order”
In another version of the Hadith:
فنحن اليوم لْيَهُودُ غَدًا وَالنَّصَارَى بَعْدَ غَدٍ
And that is Friday for us; the next day is for the Jews and the day following for the Christians.
They also use as evidence that Jummah is the day of Eid and Eid is the first of the days and not the end of it. It is the opening of the week and not the end of it.
A group of the People of Knowledge said: No, the day of Jummah is the last day of the week, the research is taken from its resources. However, the point here is that the statement that this group says that it is the end of the week, it does not contradict that Saturday is after Jummah and Sunday in consideration that these are three days in a row. So what precedes is the first day which is Jummah, and the second day is Saturday, and then after it is Sunday. So from both statements the day of Jummah precedes Saturday and Sunday”
In footnote it states: [See the two opinions in Tafsir Ibn Kathir (2/592), Fath ul-Bari (2/356), Fayd ul-Qadir (5/227), and Ruh al-Ma’aani (24/106)].
[Sharh Fadl ul-Islaam pg. 49-50]
Faisal Ibn Abdul Qaadir Ibn Hassan