877 مَنْ صَلَّى صلاةَ الصُّبْحِ فهو في ذِمَّةِ اللهِ فلا يَطْلُبَنَّكُمُ اللهُ مِنْ ذِمَّتِهِ بِشَيْءٍ
Whoever performs the Fajr prayer is under the protection of Allah, so none of you should harm the one under the protection of Allah in any way

عن جندب بن عبد الله رضي الله عنه قال: قال رسول الله صلى الله عليه وسلم : «مَنْ صَلَّى صلاةَ الصُّبْحِ فهو في ذِمَّةِ اللهِ فلا يَطْلُبَنَّكُمُ اللهُ مِنْ ذِمَّتِهِ بِشَيْءٍ، فَإِنَّهُ مَنْ يَطْلُبْهُ مِنْ ذِمَّتِهِ بِشَيْءٍ يُدْرِكْهُ، ثُمَّ يَكُبُّهُ على وَجْهِهِ في نَارِ جَهَنَّمَ».

Jundub ibn ‘Abdullāh (may Allah be pleased with him) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Whoever performs the Fajr prayer is under the protection of Allah, so none of you should harm the one under the protection of Allah in any way, for whoever does that will be definitely overtaken by the wrath of Allah and will then be thrown on his face in Hellfire."

صحيح - ( رواه مسلم ). Sahih/Authentic. [Muslim]

من صلى صلاة الصبح فقد دخل في عهد الله فكأنه معاهد لله عزّ وجلّ أن لا يصيبه أحد بسوء، فلا تحل أذيته من أحد؛ لأن أذيته تعتبر في الحقيقة اعتداء على الله ونقضًا لأمانه الذي وهبه لهذا المصلي، ومن نقض عهد الله واعتدى عليه فقد عرض نفسه لمحاربة الله، والله ينتقم لمن أوذي وهو في جواره وأمانه.
Whoever performs the Fajr prayer enters under the protection of Allah, as if he has entered into a covenant with Allah that no one will harm him. It is unlawful then to harm such a person, because harming him will be considered transgression against Allah, and a violation of the protection that Allah has granted this person. Whoever breaks the covenant of Allah and transgresses against Him exposes himself to His wrath, and Allah will retaliate against him for harming someone who is under His protection.

بيان أهمية صلاة الفجر وفضيلتها. التحذير الشديد من التعرض بسوء لمن صلى الصبح. الحفاظ على حدود الله وحرماته سبب في حفظ الله للعبد وعونه.
It shows the significance and merit of the Fajr prayer. It gives a stern warning against harming one who has performed the Fajr prayer. Guarding the limits set by Allah and His sacred ordinances is a reason for a servant to receive Allah’s protection and