Ibrahim bin Ubayd bin Rifa'ah relates: I visited Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) in Makkah and saw that he was praying while sitting. Then he mentioned the whole hadith and said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Whoever performs the Isha prayer in congregation, then after it prays as much as Allah enables him, and also performs the witr before sleeping, that night will be for him as if he had found Laylat al-Qadr."
In the chain of this report there is a narrator named Khalid bin Ilyas, who according to the hadith scholars is severely weak and matruk al-hadith (abandoned in hadith), on the basis of which this narration is extremely weak.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب النوافل / 630
Hadith Gradingمحدثین:إسناده ضعيف جدًا
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده شديد الضعف لحال خالد بن إياس. » «أخرجه الدارقطني فى «سننه» برقم: 1564، وعبد بن حميد فى "المنتخب من مسنده"، 1152، وأورده ابن حجر فى "المطالب العالية"، 413، 413، 630»