Be cautious about ahadith except those which were current during the reign of Umar, for he exhorted people to fear Allah, the Exalted and mMajestic. I heard the Messenger of Allah ﷺ as saying: He upon whom Allah intends to bestow goodness, He confers upon him an insight in religion; and I heard the Messenger of Allah ﷺ as saying: I am the treasurer. To one whom I give out of (my own) sweet will, he would be blessed in that, but he whom I give (yielding to) his constant begging and for his covetousness is like one who would eat, but would not be satisfied.  

سَمِعْتُ مُعَاوِيَةَ يَقُولُ إِيَّاكُمْ وَأَحَادِيثَ إِلاَّ حَدِيثًا كَانَ فِي عَهْدِ عُمَرَ فَإِنَّ عُمَرَ كَانَ يُخِيفُ النَّاسَ فِي اللَّهِ ﷻ سَمِعْتُ رَسُولَ اللَّهِ ﷺ وَهُوَ يَقُولُ مَنْ يُرِدِ اللَّهُ بِهِ خَيْرًا يُفَقِّهْهُ فِي الدِّينِ وَسَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ إِنَّمَا أَنَا خَازِنٌ فَمَنْ أَعْطَيْتُهُ عَنْ طِيبِ نَفْسٍ فَيُبَارَكُ لَهُ فِيهِ وَمَنْ أَعْطَيْتُهُ عَنْ مَسْأَلَةٍ وَشَرَهٍ كَانَ كَالَّذِي يَأْكُلُ وَلاَ يَشْبَعُ  

Do not press in a matter, for I swear by Allah, none of you who asks me for anything and manages to get his request while I disdain it, will he be blessed in that which I give him.  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ تُلْحِفُوا فِي الْمَسْأَلَةِ فَوَاللَّهِ لاَ يَسْأَلُنِي أَحَدٌ مِنْكُمْ شَيْئًا فَتُخْرِجَ لَهُ مَسْأَلَتُهُ مِنِّي شَيْئًا وَأَنَا لَهُ كَارِهٌ فَيُبَارَكَ لَهُ فِيمَا أَعْطَيْتُهُ  

I went to his house in San'a' and he offered me nuts grown in his house to eat. And his brother said: I heard Mu'awiya b. Abu Sufyan saying that he had heard the Messenger of Allah ﷺ as saying, and then he made a mention (of a hadith) like one mentioned above.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ فَذَكَرَ مِثْلَهُ  

I heard Mu'awiya b. Abu Sufyan saying in an address that he had heard the Messenger of Allah ﷺ as saying: He to whom Allah intends to do good, He gives him insight into religion. And I am only the distributor while Allah is the Bestower.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ مَنْ يُرِدِ اللَّهُ بِهِ خَيْرًا يُفَقِّهْهُ فِي الدِّينِ وَإِنَّمَا أَنَا قَاسِمٌ وَيُعْطِي اللَّهُ