It is narrated from Sayyiduna Tariq bin Shihab (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "The Friday prayer is obligatory upon every Muslim except a slave, a woman, a child and a sick person."
Although this hadith is mursal (its chain skips the Companion), it is a good mursal, for Tariq is among the best of the Successors and among those who saw the Prophet (peace and blessings be upon him), even though he did not hear from him; and this hadith of his has supporting reports.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5632