Imam al Qurtubi on Calling upon Anbiya.
al Qurtubi said under the verse 14 of surah fatir:
([035:014] If ye invoke them, they will not listen to your call, and if they were to listen, they cannot answer your (prayer). On the Day of Judgment they will reject your “Partnership”. and none, (O man!) can tell thee (the Truth) like the One Who is acquainted with all things.)
Al Qurtubi commented:
أي إن تستغيثوا بهم في النوائب لا يسمعوا دعاءكم؛ لأنها جمادات لا تبصر ولا تسمع
Meaning is If you Call them for help in hard situations then they cannot hear you because they are Jamadaat, they cannot see nor hear.
ثم يجوز أن يرجع هذا إلى المعبودين مما يعقل؛ كالملائكة والجن والأنبياء والشياطين؛ أي يجحدون أن يكون ما فعلتموه حقاً، وأنهم أمروكم بعبادتهم؛
كما أخبر عن عيسى بقوله:
{ مَا يَكُونُ لِيۤ أَنْ أَقُولَ مَا لَيْسَ لِي بِحَقٍّ
This is Possible that this verse is for Angels, Jinn, Prophets and Satan as they will deny (all) what you have done and that they asked them to worship them, Like Eesa Peace be upon him will say “It was not for me to say what I had no right (to say)”. (end quote)
Imam-Qurtubi states in the commentary of 40 : 60:
فدل هذا على أن الدعاء هو العبادة. وكذا قال أكثر المفسرين
‘Your Lord said: Call upon Me, and I will respond to you!’, this proves that invocation is the act of worship, and this is what most of the mufassirin are upon’. (end quote)
In short according to him invocation is an act of worship and when you invoke Anbiya and Saliheen they will deny this invocation on the day of Judgment.