Abdul-Rahman bin Abdul-Qari reported,

Umar bin Khattab said, "Whoever misses his portion of recitation during the night and then recites it after the sun has passed its zenith and before the noon prayer, it is as though he has not missed it," or, "it is as though he has caught up with it."Humayd bin Abdul-Rahman bin Awf reported this as a statement of Umar himself.

Nasai 1793

Sahih

أخبرنا قتيبة بن سعيد عن مالك عن داود بن الحصين عن الأعرج

عن عبد الرحمن بن عبد القاري

أن عمر بن الخطاب قال من فاته حزبه من الليل فقرأه حين تزول الشمس إلى صلاة الظهر فإنه لم يفته أو كأنه أدركه رواه حميد بن عبد الرحمن بن عوف موقوفا

النسائي 1793صحيح
Contents
Reference
Commentary
Ayat
Collection
Sunan Nasai Sughra
Book
Night prayer and voluntary prayers of the day
Chapter
When one who missed his portion of night prayer should make it up
Numbering
Darussalam 1793
Nasai 1793