One verse

Srimad Bhagavatam 7.15.3

7.15.3

द्वौ दैवे पितृकार्ये त्रीनेकैकमुभयत्र वा । भोजयेत्सुसमृद्धोऽपि श्राद्धे कुर्यान्न विस्तरम् ॥ ३ ॥

dvau daive pitr-karye trin ekaikam ubhayatra va bhojayet susamrddho ’pi sraddhe kuryan na vistaram

dvau
two
daive
during the period when oblations are offered to the demigods
pitr-karye
in the sraddha ceremony, in which oblations are offered to the forefathers
trin
three
eka
one
ekam
one
ubhayatra
for both occasions
va
either
bhojayet
one should feed
su-samrddhah api
even though one is very rich
sraddhe
when offering oblations to the forefathers
kuryat
one should do
na
not
vistaram
very expensive arrangements

During the period for offering oblations to the demigods, one should invite only two brahmanas, and while offering oblations to the forefathers, one may invite three brahmanas. Or, in either case, only one brahmana will suffice. Even though one is very opulent, he should not endeavor to invite more brahmanas or make various expensive arrangements on those occasions.