The Poor and Unfortunate
40. Not to afflict an orphan or a widow  Negative
Exodus 22:21 
41. Not to reap the entire field  Negative
Leviticus 19:9;  Leviticus 23:22   
42. To leave the unreaped corner of the field or orchard for the poor  Affirmative,
Israel
Leviticus 19:9  
43. Not to gather gleanings (the ears that have fallen to the ground while reaping)  Negative,
Israel 
Leviticus 19:9
44. To leave the gleanings for the poor  Affirmative,
Israel
Leviticus 19:9
45. Not to gather ol'loth (the imperfect clusters) of the vineyard  Negative,
Israel
 
Leviticus 19:10
46. To leave ol'loth (the imperfect clusters) of the vineyard for the poor  Affirmative,
Israel
Leviticus 19:10; Deuteronomy 24:21
47. Not to gather the peret (grapes) that have fallen to the ground  Negative,
Israel
 
Leviticus 19:10
48. To leave peret (the single grapes) of the vineyard for the poor  Affirmative,
Israel
Leviticus 19:10 
49. Not to return to take a forgotten sheaf 
This applies to all fruit trees 
Negative,
Israel
 
Deuteronomy 24:19; Deuteronomy 24:20 
50. To leave the forgotten sheaves for the poor  Affirmative,
Israel
Deuteronomy 24:19-20
51. Not to refrain from maintaining a poor man and giving him what he needs  Negative
Deuteronomy 15:7 
52. To give charity according to one's means  Affirmative
Deuteronomy 15:11