The Messenger of Allah ﷺ said, "May he be humbled, the man in whose presence I am mentioned and he does not send blessings upon me. May he be humbled, the man upon whom Ramadan enters and then departs before he is forgiven. And may he be humbled, the man whose parents reach old age in his care and yet they do not cause him to enter Paradise."
قال رسول الله ﷺ: رغم أنف رجل ذكرت عنده فلم يصل علي، ورغم أنف رجل دخل عليه رمضان ثم انسلخ قبل أن يغفر له، ورغم أنف رجل أدرك عنده أبواه الكبر فلم يدخلاه الجنة.
Tirmidhi (3545) and Ahmad (7451) narrated it, and Ibn Hibban (908) and Hakim (1/549) both graded it sahih, all of them through routes from Abdul-Rahman bin Ishaq, from Saeed bin Abu Saeed Maqburi, from Abu Hurairah, who related it. Hakim confined himself to mentioning the invocation of blessings upon the Prophet ﷺ. Its chain is hasan because of Abdul-Rahman bin Ishaq, who is the one from Madinah, for his hadith is hasan. Tirmidhi said, "This is a hasan gharib hadith from this angle."