Not finishing surah !

[sampjzt]

As-salamu alaykum


If you pray behind the imam at silent prayers like dhuhr and asr , and you can't finish a surah that you started after you say fatiha, because the imam goes to ruku does that affect my prayer ?

I hope you understand my question .

['Abdullah]

As-salamu alaykum


If you pray behind the imam at silent prayers like dhuhr and asr , and you can't finish a surah that you started after you say fatiha, because the imam goes to ruku does that affect my prayer ?

I hope you understand my question .

Assalam O Alaikum Wa Rahamatullahi Wa Barakatuh,
Welcome to the forum. To answer your question, I will quote a hadith:

'Ata' reported it on the authority of Abu Huraira who said:
Recitation (of Surat al-Fatiha) in every (rak'ah) of prayer in essential. (The recitation) that we listened to from the Messenger of Allah (ﷺ) we made you listen to it. And that which he recited inwardly to us, we recited it inwardly for you. And he who recites Umm al-Qur'an, it is enough for him (to complete the prayer), and he who adds to it (recites some other verses of the Holy Qur'an along with Surat al-Fatiha), it is preferable for him.

حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا يَزِيدُ، - يَعْنِي ابْنَ زُرَيْعٍ - عَنْ حَبِيبٍ الْمُعَلِّمِ، عَنْ عَطَاءٍ، قَالَ قَالَ أَبُو هُرَيْرَةَ فِي كُلِّ صَلاَةٍ قِرَاءَةٌ فَمَا أَسْمَعَنَا النَّبِيُّ صلى الله عليه وسلم أَسْمَعْنَاكُمْ وَمَا أَخْفَى مِنَّا أَخْفَيْنَاهُ مِنْكُمْ وَمَنْ قَرَأَ بِأُمِّ الْكِتَابِ فَقَدْ أَجْزَأَتْ عَنْهُ وَمَنْ زَادَ فَهُوَ أَفْضَلُ ‏.‏
Reference: Sahih Muslim 396 c
In-book reference: Book 4, Hadith 46
USC-MSA web (English) reference: Book 4, Hadith 780
https://sunnah.com/muslim/4/46

Similar hadith is found in Bukhari as well. Scholars have agreed that reciting Surah Fatiha is enough to complete the prayer. If you can't read a Surah behind Imam, your prayer is still valid In Sha Allah. For more details, refer to link below:
https://islamqa.info/en/answers/6422...not-obligatory
And Allah knows the best!
Ma'aSalaam