It is narrated from Hazrat Anas (may Allah be pleased with him) that once a tailor invited the Prophet (peace and blessings be upon him) to a meal. When he brought the food, it contained old oil and pumpkin. I saw that the Prophet (peace and blessings be upon him) was searching for pumpkin in the bowl. From that time, I also began to like pumpkin.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 14085