It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that a man came to the Prophet (peace and blessings be upon him) and submitted: "O Messenger of Allah, teach me a (comprehensive) deed by which I may enter Paradise, and keep it brief (so that I can easily remember it)." He (peace and blessings be upon him) said: "Do not become angry."
I (Ibn Hajar) say: All the narrators of this hadith are narrators of the Sahih (al-Bukhari and Muslim), but this report is technically "shadhdh" (anomalous), because the preserved and authentic position is that this report is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him), not from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him); and it is transmitted likewise (that is, from Sayyiduna Abu Hurayrah (may Allah be pleased with him)) in Sahih al-Bukhari.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الأدب / 2611
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: رِجَالُهُ رِجَالُ الصَّحِيحِ لَكِنَّهُ شَاذٌّ ، فَإِنَّ الْمَحْفُوظَ عَنْ أَبِي هُرَيْرَةَ لَا عَنْ أَبِي سَعِيدٍ رَضِيَ اللهُ عَنْهُ ، كَذَا هُوَ فِي الصَّحِيحِ . » «أخرجه السنن الكبرى للبيهقي برقم: 20339»
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that he said: "O Messenger of Allah, tell me some comprehensive word that is brief, so that I may understand it well and remember it." The Messenger of Allah (peace and blessings be upon him) said: "Do not become angry." I repeated my question twice, but each time the Prophet (peace and blessings be upon him) gave me the same answer: "Do not become angry."
Its chain is hasan (good).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الأدب / 2612
Hadith Gradingمحدثین:إسناده حسن
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: هَذَا إِسْنَادٌ حَسَنٌ . » «أخرجه مسند أحمد برقم: 22627، وأخرجه إتحاف الخيرة المهرة بزوائد المسانيد العشرة برقم: 5322»