Leaven which is his, on his property, but not in his house: Pesachim 5b, 95a
Leaven which is his, but hidden from sight: Pesachim 5b, 27b, 95a
Leaven which is a Nochri's, or any other person's, but is his responsibility as guardian: Pesachim 5b-6a
Where he is [not] the guardian, but he designated a place on his property as belonging to the owner of the Leaven, and the Leaven stays there: Pesachim 6a
Any Leaven for which he has financial liability, is [not] considered his for the Prohibition: Pesachim 5b-6a, 29b
Leaven completely belonging to another, on his property: Pesachim 5b, 23a, 29a-b
Leaven completely belonging to Sanctified Property, on his property: Pesachim 5b, 23a, 29a-b
Leaven which is his, but he gives it to a Nochri as a lien before Pesach: Pesachim 30b-31b
Leaven which belongs to a Nochri, but is given to a Jew as a lien before Pesach: Pesachim 30b-31b
A Jew's merchandise, in a Jew's store: Pesachim 31b
A Nochri's merchandise, in a Nochri's store: Pesachim 31b