It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both): We were with the Messenger of Allah (peace and blessings be upon him) on a journey when he (peace and blessings be upon him) passed by two graves whose occupants were being punished. He (peace and blessings be upon him) said: "They are not being punished for something they considered a major matter (to avoid)." Then he (peace and blessings be upon him) (making the reality clear) said: "Yes indeed! (Those sins are truly major.) One of them used to backbite people, while the other was not careful to guard himself from the splashes of his urine and to keep himself clean." Then the Prophet (peace and blessings be upon him) took a fresh palm branch, or two branches, and broke them; then he (peace and blessings be upon him) planted each piece of those branches on a grave and said: "Indeed, their punishment will be lightened as long as these branches remain fresh," or he (peace and blessings be upon him) said these words: "as long as they do not dry out." Imam al-Bukhari and Imam Muslim narrated this hadith with a different wording, and this hadith is sahih (authentic).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الطهارة / 16
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: وَأَخْرَجَهُ الْبُخَارِيُّ ، وَمُسْلِمٌ بِغَيْرِ هَذَا السِّيَاقِ ، صَحِيحٌ . » «أخرجه صحيح البخاري برقم: 215، وأخرجه صحيح مسلم برقم: 439، وأخرجه سنن الترمذي برقم: 70، وأخرجه سنن النسائي برقم: 2068، وأخرجه سنن أبي داود برقم: 20، وأخرجه سنن ابن ماجه برقم: 347، وأخرجه مسند أحمد برقم: 1981، وأخرجه سنن الدارمي برقم: 739، وأخرجه مصنف ابن أبي شيبة برقم: 8، 4، وأخرجه صحيح ابن حبان برقم: 3128، 3129، وأخرجه إتحاف الخيرة المهرة بزوائد المسانيد العشرة برقم: 449/2، 450»