´It was narrated from Salim, from his father, that the Prophet (ﷺ) said:` "Whoever catches up with with a Rak'ah of Jumu'ah or any other (prayer), his prayer is complete."
Hadith Referenceسنن نسائي / كتاب المواقيت / 558
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:حسن
Hadith Takhrij«سنن ابن ماجہ/إقامة 91 (1123)، (تحفة الأشراف: 7001) (صحیح)»
´It was narrated that Ibn ‘Umar said:` “The Messenger of Allah (ﷺ) said: ‘Whoever catches one Rak’ah of Friday prayer or other than it, then he has caught the prayer.’”
Maulana Ataullah Sajid
Benefit: One meaning of this is that whoever catches one rak‘ah with the congregation is not deprived of the reward of the congregation. The second meaning is that if one rak‘ah is performed within the prescribed time and then the time ends, that prayer is not considered missed (qada). For example, if one rak‘ah of Fajr was performed and then the sun rose, or one rak‘ah of ‘Asr was performed and then the sun set, in this case, one should complete the prayer. However, it is prohibited to delay the prayer to such an extent without a valid excuse.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 1123
Narrated Ibn 'Umar (RA): Allah's Messenger (ﷺ) said: "Whoever is in time for a Rak'ah of the Friday prayer, or any other prayer, should add another (Rak'ah) to it and his prayer will then be complete." [an-Nasa'i, Ibn Majah and ad-Daraqutni reported it; the wording is from ad-Daraqutni. Its chain of narrators is Sahih (authentic), but Abu Hatim strengthened the view that it is Mursal (missing link after the Tabi'i)].