One verse

Srimad Bhagavatam 7.15.4

7.15.4

देशकालोचितश्रद्धाद्रव्यपात्रार्हणानि च । सम्यग्भवन्ति नैतानि विस्तरात्स्वजनार्पणात् ॥ ४ ॥

desa-kalocita-sraddha- dravya-patrarhanani ca samyag bhavanti naitani vistarat sva-janarpanat

desa
place
kala
time
ucita
proper
sraddha
respect
dravya
ingredients
patra
a suitable person
arhanani
paraphernalia for worship
ca
and
samyak
proper
bhavanti
are
na
not
etani
all these
vistarat
due to expansion
sva-jana-arpanat
or due to inviting relatives.

If one arranges to feed many brahmanas or relatives during the sraddha ceremony, there will be discrepancies in the time, place, respectability and ingredients, the person to be worshiped, and the method of offering worship.