Hadith.3558 - Al-Hasan al-Sayqal asked about a man who said: "The first slave I acquire will be free." Then he acquired six slaves.
Imam (as) said: "His intention was for one. Let him choose whichever one he wishes and set him free."
Man Lā Yaḥḍuruh al-Faqīh #253"If a man says, 'The first slave I acquire shall be free,' and then he inherits seven slaves altogether, lots are drawn among them, and the...