Abu Mulaaih says that once we were participating in a battle with Hazrat Buraidah (may Allah be pleased with him). That day it was cloudy. He said, "Pray quickly, because the Noble Prophet (peace and blessings be upon him) said: Whoever leaves the Asr prayer, all his deeds are wasted."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23055
Hadith Gradingحکم دارالسلام:حديث صحيح، خ: 553 على وهم فى إسناده و متنه، فقول الأوزاعي: عن أبى المهاجرة خطأ، صوابه: عن أبى المليح الهذلي، وفي متنه إدراج