Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) narrates: The Prophet (peace and blessings of Allah be upon him) said about Sayyiduna Sa’d (may Allah be pleased with him): "He is that righteous person for whom the gates of the heavens were opened. He was subjected to constriction (in the grave), but then relief was granted to him."
Hadith Referenceصحیح ابن حبان / كتاب إخباره ﷺ عن مناقب الصحابة رجالهم ونسائهم بذكر أسمائهم رضوان الله عليهم أجمعين / 7033
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيحسن صحيح - «الصحيحة» (3348).فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده حسن