Abu Dhabi Crown Prince said Sheikh Khalifa "passed through a difficult crisis" but had "overcome it"
The president of United Arab Emirates is in "stable and reassuring" condition after surgery following a stroke late last month, state media reported on Monday.
The WAM state news agency quoted the half brother of Sheikh Khalifa bin Zayed Al Nahayan, Abu Dhabi Crown Prince Sheikh Mohammed bin Zayed Al Nahayan, as telling guests: "Yes we passed through a difficult crisis, we have overcome it, thanks be to God."
Born in 1948, Sheikh Khalifa is known as a pro-Western moderniser who has ruled the UAE since the death of his father Sheikh Zayed bin Sultan Al Nahayan in 2004.
He is also the ruler of oil-producing Abu Dhabi, the richest and most powerful of the UAE emirates, which also include Dubai, Sharjah, Ajman, Fujairah, Umm Al Quwain and Ras Al Khaimah.
WAM reported on January 25 that Sheikh Khalifa underwent surgery after a stroke.