Riyad as-Saliheen 1156
Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah ﷺ said while talking about the merits of Friday, "There is a time on Friday at which a Muslim, while he (or she) is performing Salat and is supplicating, will be granted whatever he (or she) is supplicating for." And he ﷺ pointed with his hand to indicate that this period of time is very short.
[Al-Bukhari and Muslim].
وعنه أن رسول الله ﷺ ، ذكر يوم الجمعة، فقال:
"فيها ساعة لا يوافقها عبد مسلم، وهو قائم يصلي يسأل الله شيئًا، إلا أعطاه إياه" وأشار بيده يقللها، ((متفق عليه)) .
Classification
Sahih (Authentic)
References
Riyad as-Saliheen 1156
Riyad as-Saliheen Book of Virtues, Hadith 166