It is narrated from Muhammad bin Ibrahim bin Harith Taimi that Qatadah bin Nu’man (may Allah be pleased with him) said some harsh words about the Quraysh (it seemed as if he had been hurt by them). So the Messenger of Allah (ﷺ) said: “O Qatadah! Stop, be patient, do not speak ill of the Quraysh, for indeed, perhaps you will see among them such people that, compared to their deeds, you will consider your own deeds insignificant, and compared to their actions, you will consider your own actions few, and when you see them, you will envy them. If the Quraysh had not shown arrogance (ingratitude), I would have told them what Allah has in store for them (in Paradise).”
Hadith Referenceمسند الإمام الشافعي / كتاب فضائل قريش وغيرهم وأبواب متفرقة / 1781
Hadith Takhrijاسناده ضعيف لإرساله اخرجه البيهقي في المعرفة السنن والآثار 1/ 89 - واحمد: (6/ 384)۔