Canonical version
Tea Prepared with Love
During His second stay in Chicago, in September 1912, ‘Abdu’l-Bahá chose to stay in Corinne True's home for a day or two before moving to a hotel. When He arrived with His secretaries, Corinne served them all tea. Unfortunately, it was a type of tea that Persians don't like, and some of them remarked that "there was better tea". But the Master drank it anyway, saying, "This tea is very good because it has been prepared with love."
Source: Earl Redman, ‘Abdu’l-Bahá in Their Midst, p. 192. ‘Abdu’l-Bahá’s words are recorded in Mahmúd’s Diary, September 13, 1912.
Collected from bahaistories.com (Subject: forgiveness-others).