Sa'id bin Jubayr (may Allah have mercy on him) narrates from Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever hears the call to prayer and does not come without an excuse, there is no prayer for him." They asked: What is an excuse? He said: "Fear or illness."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5641