The Messenger of Allah ﷺ said, "When one of you prays the Friday prayer, let him pray four units after it."
أخبرنا إسحق بن إبراهيم قال أنبأنا جرير عن سهيل عن أبيه
قال رسول الله ﷺ إذا صلى أحدكم الجمعة فليصل بعدها أربعا
Sahih Muslim reported it, in the book of Jumuah, chapter on the prayer after Jumuah, hadith no. 69/881, from the hadith of Jareer bin Abdul-Hameed, and it is also found in Al-Kubra, hadith no. 1743.