The Messenger of Allah ﷺ gave the closing salam after only three rakahs of the afternoon prayer, then he stood up and entered his chamber. A man with long arms named Khirbaq rose and called out, "Messenger of Allah, has the prayer been shortened?"He came out angrily, dragging his lower garment, and asked about it. When he was informed of what had happened, he prayed the rakah he had omitted, then gave the salam, then made two prostrations, and then gave the salam again.
حدثنا محمد بن المثنى وأحمد بن ثابت الجحدري حدثنا عبد الوهاب حدثنا خالد الحذاء عن أبي قلابة عن أبي المهلب
سلم رسول الله ﷺ في ثلاث ركعات من العصر ثم قام فدخل الحجرة فقام الخرباق رجل بسيط اليدين فنادى يا رسول الله أقصرت الصلاة فخرج مغضبا يجر إزاره فسأل فأخبر فصلى تلك الركعة التي كان ترك ثم سلم ثم سجد سجدتين ثم سلم