Sayyiduna Jabir bin Samurah (may Allah be pleased with him) narrates: Sayyiduna Umar (may Allah be pleased with him) said to Sayyiduna Sa’d bin Abi Waqqas (may Allah be pleased with him): The people of Kufa have complained about you in every matter, even regarding the prayer. So Sayyiduna Sa’d said: I make the first two rak’ahs long and the last two rak’ahs short, and I do not fall short in following the way of prayer of the Prophet (peace and blessings of Allah be upon him). So Sayyiduna Umar (may Allah be pleased with him) said: This is what I thought of you.
Hadith Referenceصحیح ابن حبان / كتاب الصلاة / 1937
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «صحيح أبي داود» (765): ق.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرطهما، أبو عون الثقفي: هو محمد بن عبيد الله بن سعيد.