There is a fantastic book in English authored by Dr. Meir Wikler, published
by Feldheim 1994 entitled AISHEL: Stories of contemporary Jewish hospitality.
Pick up a copy you will enjoy the stories and gain quite a few sources quoted
throughout the book.
Hatzlocha Rabba
Moshe F. (MosheZhava@aol.com)
P.S. Somes sources in the above mentioned book...
Pirkei Avos 1:5
Sukkah 59b
Chagiga 27a
Sotah 10a based on Bereshis 21:23
Kesubos 8b
Rabbenu Bachya on Bereshis 21:33
Shabbos 127a
Kiddushin 39b
Sanhedrin 103b ;104a