What is "sultan-ul-arifeen"

Sultan-ul-Arifeen is an Arabic word/title which literally means "the king among those who have Knowledge (of God)" (that is, metaphorically, "the first among the Wise") and may refer to:

• Bayazid Bastami (804–874), a Persian Sufi mystic, born in Bastam, Greater Iran.
• Hamza Makhdoom (1494–1576), a Sufi mystic, scholar and spiritual teacher living in Kashmir.
• Sultan Bahoo (1630–1691), a Sufi mystic, poet and scholar living in Punjab, founder of the Sarwari Qadiri tradition.