Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah ﷺ said, "Whoever follows the funeral procession and offers the funeral prayer for it, will get a reward equal to one Qirat, and whoever attends it till burial, will get a reward equal to two Qirat.'' It was asked, "What are two Qirat?'' He ﷺ replied, "Equal to two huge mountains."

[Al-Bukhari and Muslim].

عن أبي هريرة رضي الله عنه قال: قال رسول الله ﷺ : “من شهد الجنازة حتي يصلى عليها، فله قيراط ، ومن شهدها حتي تدفن، فله قيراطان" قيل: وما القيراطان؟ قال: “مثل الجبلين العظيمين” ((متفق عليه)) .