Imran bin Husayn reported,

The Prophet ﷺ said, "The best of you are my generation, then those who follow them, then those who follow them."Imran said, "I do not recall whether the Prophet ﷺ mentioned two generations or three after his own."The Prophet ﷺ said, "After you will come a people who betray and cannot be trusted, who give testimony without being asked, who make vows but do not fulfill them, and among whom obesity will appear."

Azami 6740

Sahih

عن عمران بن حصين قال

قال النبي ﷺ: خيركم قرني ثم الذين يلونهم ثم الذين يلونهم، قال عمران: لا أدري، أذكر النبي ﷺ بعد قرنين أو ثلاثة، قال النبي ﷺ: إن بعدكم قوما يخونون ولا يؤتمنون، ويشهدون ولا يستشهدون، وينذرون ولا يفون، ويظهر فيهم السمن.

الأعظمي 6740صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Judgeship
Chapter
Testimonies
Section
Condemnation of hastening to give testimony before being asked for it
Numbering
Jami al-Kamil 6740 (2nd edition)